From labels and weed guides
Best herbicides for prickly lettuce in alfalfa
For prickly lettuce in alfalfa, the weed guides list 6 active-ingredient groups with every rating at least 80% control, after checking that the products are labeled for alfalfa.
Prickly Lettuce control in alfalfa
Every listed product is labeled for alfalfa. Ratings are shown when each weed guide that rates this weed has a lower interval bound of at least 80% control for the active-ingredient group. If a guide gives a range, its lower bound must be at least 80%.
Based on 2 weed guides, 6 active-ingredient groups are rated at least 80% control for prickly lettuce in alfalfa.
| Example product | Active ingredients | MOA group | Ratings checked |
|---|---|---|---|
| Axill Solutions Imazethapyr 2SL EPA 93809-3; same active ingredients on 10 other branded products | imazethapyr | 2 | ND Weed Guide 2026: Ea → 90–99% control (PDF) |
| Abigor EPA 34704-1174; same active ingredients on 8 other branded products | imazamox | 2 | ND Weed Guide 2026: Ga → 80–90% control (PDF) |
| MCP Amine 4 EPA 34704-130; same active ingredients on 2 other branded products | mcpa | 4 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| Velpar AlfaMax EPA 61842-45; same active ingredients on 1 other branded product | diuron and hexazinone | 5 | Ks Weed Guide 2026, ks alfalfa dormant: E → 90–100% control (FieldMarshal policy interval) (PDF) |
| Basagran 5L EPA 7969-112 | bentazon | 6 | ND Weed Guide 2026: G → 80–90% control (PDF) |
| Sharpen EPA 7969-278 | saflufenacil | 14 | Ks Weed Guide 2026, ks alfalfa dormant: G → 80–90% control (FieldMarshal policy interval) (PDF); ND Weed Guide 2026, Q32 rating table, pp. 7, 14: G-E → 80–99% control (PDF) |
Rating bands: E 90-100%, G 80-89%, F 70-79%, P under 70%, N none. Policy intervals are marked in the source ratings. A range such as G-E means the guide gives a range; 'a' after a rating (e.g., Ga) means the guide assumes its recommended additive. Read the rating method.
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Sources
Data from current labels and weed guides. Last source update: 2026-09-30.